Circle pen loop



FIG. 1 is a front perspective view of my circle pen loop design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines showing a pen in FIG. 8 are included for the purpose of showing environmental matter that forms no part of the claimed design. 

CLAIM The ornamental design for a circle pen loop, as shown and described. 